Yamaha 70hp

[evadone1]

Im having problems with my motor, it starts fine and idles fine and goes into gear fine but when you try to accelerate, it usually wont respond and if you push the throttle all the way it will cut out. I have checked the fuel line from tank to carburetors and even cleaned carbs but problem still remains. Some times you can patiently nudge the throttle once in gear and the revs will increase and your away but its a real hit and miss type situation. Any suggestions.

[99yam40]

Probably need to clean carbs better and redo the link and sync like manual states after reinstalling them
and check to make sure timing is advancing properly